Car-truck.



PATENTBD NOV. l2, 1907.

f W. B. AMBERG.

GAR TRUCK.

APPLIoATIoN Hmm APn.1.1eov.

8 SHEETS-SHEET 1.

PATENTBD NOV. 12, 1907.

W. E. AMBERG.

GAR TRUCK. APP'LIOATION FILED APR.1.1907.

3 SHEETS-SHEET 2.

viii! n 4741i. 'infini 3 SHEETS-SHEET 8.

PATENTED NOV. 12, 190?.

'lll

w. E. AMBBRG. GAR TRUCK.

APPLIOATION FILED APR. 1.1907.

l No. 870,607.

5g/@22227 MIE/117x256@ provement's in a Car-Truck, of which the following is a UNITED STATES PATENT OFFICE.

CAR-TRUCK.

No; 870,607. Specification of Letters Patent. Patented Nov. 12, 1907.

Application filed April 1| 1907. Serial No. 365.728.

To all whom 'it may concern:

som, A, in its place. I also dispense with the usual Be it known that l, WALTER E. Arianne, acitizen of rigid arch bar side frames and substitute therefor two the United States, residing at Chicago, (`ook county, Illinois, have invented certain new and useful Imfull, clear, and exact description, 4such as will enable Yothers `skilled in the art to which it appertains to make 1d use the same.

'ihough applicable to six and `eight wheeled trucks for passenger cars my invention hasspeoial reference to improvements in four wheeled ireight car trucks.

The object of my invention is to improve the construction of car trucks with a view to a better distribution and disposition oi the load sustaining springs to l l5 the end that the trucks shall be more delicately responsive to jars and shocks and thereby protect the car body and its load from excessive strains. vStill further objects ot' my inventionwll appearV hereinafter. l

My invention consists generally in a car truck comprising wheels and axles, in combination with a load sustaining transom wherein or whcreon the truck cenl ter is placed and spring supported, pivotally articulated vside frames borne by the axles and supporting said transom.

My invention also consists in various novel details i oi construction and in combinations of parts, all as hercinnl'ter described and particularly pointed out in the claims. i

'lhe invention will 'be more readily understood by reference to the accompanying drawings forming a part of this specilig-ntion and in which:

Figurel is a side elevation of a freight car truck cuibodying my invention'` Fig. 2 is a similar view showing the transom depressed; Fig. 3 is a vertical transverse section 0n the line X-X of Fig. l; Fig. 4 is a lonarticulated side frames each made up, preferably, of three members, B, B and C. The members, B, B and C are hinged, in other words, 'pivotally connected, by hinge pins, D, D.

i The ends of the transom, A, rest upon the tops of the mid-members, C, C, of the side frames, at opposite sides of the truck. Springs, E, E are, in each side frame, interposed between the members, B, B, and the transom, and other springs, F, F, are interposedbetween the members, B, B, and the member, C. Together these springs sustain or support the connected members of respective side frames in the manner shown in Fig. 1. When the transom is depressed by a load imposed thereon the members, C, C, are forced down and the members, B, B, acting against the springs, `E and F place the latter under increased compression, the springs ultimately sustaining the transom load as .indicated in Fig. 2. The side frames include or are attached to the journal boxes, G-G on the wheel axles, H-H. The brake shoes, I, and the brake beams, I are sustained by links, J, attached to the members, C, C, t'. e. are preferably pivoted on ends of the pivot or hinge pins, D. The brake operating mechanism, K, is of ordinary construction and is sustained from the transom as shown in Fig. 5. When the transom and the side frame are depressed by a load, the brake shoes` will be likewise depressed; the thrust thereof against the wheels being somewhat increased, when the brake mechanism is in action.

Having now brieiy described a car truck embodying my invention, I will proceed to the description of th'e several members thereof in detail.

The principal members of the transom, A, are two I beams, a, a. The upper flanges of these beams are congitudinal vertical section on the lines-Y-Y of Figs.' i nected by the center bearing plate, a and by the side 3 and 6; Fig. 5 isla vertical section on the lines Z-Z l bearing plates, a.

They may be reinforced by addiof Figs. 3 and 6; Fig. 6 is a plan view of the car truck, Y tional parts when required. The lower flanges of the 40 one half thereof being shown in horizontal section on the lines U-U of Figs. 1 and 3; Figs. 7, 8 and 9 are de- 1 v tail views of one of the transom and spring carriers;

elevation of the casting, Fig. 8 a. plan view thereof, and

i ,forming a part of theside.rame; Fig. 7, being an end v Fig. 9 a. horizontal section on the line V-V of Fig. 7.

In these drawings l have shown my invention as it appears, in preferred form, in a four wheeled freight car truck.v The drawings disclose the principle of the l invention and while six and eight wheel car trucks, are i `not shown, it Will be readily understood that -my invention is applicable to such trucks and is not confined to four wheel trucks.

In carrying out my invention, in the particular form the hinge pins, D, D.

h'erein shown` I dispense with the usual truck bols-1 er and employ u simple load sustaining member or tran- I beams, a, a, rest upon and are either riveted or bolted to the tops of the members, C, C. lt will now be seen that the members, C, C, are common to the transom and tc the side frame members, B, being interposed between the bolster and said members,y B. The members, C, are identical in form, but are preferably reversed in position as shown in Fig. 3.

Each member, C, comprises the horizontal plate portion, c, a vertical web, c, and two spring pockets, c, c, arranged on opposite sides of the web and at opposite ends thereof as well shown in Figs. 7, 8 and 9. The ends of the horizontal portion, c, are provided with a plurality of hinge lugs, c, containing holes for It will be noted that the web or depending portion c effectually strengthens the horizontal portion c, but its principal function is that of a parts of cast steel they may be cast as one part or elecarrier for the spring brackets or pockets c which un' derlie the overhanging inner and outer parts of the portion c. The springs, F, F, rest in the spring pockets, c.

Withv the exception of thejournal boxes which as shown are preferably integral parts thereof, themembers, B, B, are identical in form but occupy reversed positions having-arms b, b, which extend inopposite directionson opposite sides of the web portionof the member, Cf ,The lower inner corners of the membersV B are formed tot the hinge lugs of the member C and are provided with holes to receive the hinge pins, D. In this manner the members, B, B, are hinged upon the members C. A

As shown in Fig. 1, I prefer that the members, B, shall have an even number of hinge lugs, b, so that'the ends of the hinge pin may be secured in the members, B. The arms, b, extend beneath the plate portion,c, of *the lmember, C, and at points above the respective spring pockets, c, are provided with spring caps, 1,6, lwhich rest upon the springs, F.' These springs normally hold the arms up against the bottom of the member, C, and in this position the centers of the hinge pins are substantially in line with the centers of the car wheel axles. Each member, B, is provided with an upwardly extending arm, bm, containing two spring pockets, b, adjacent to the sides of thc transon. As well shown in the drawings the springs, E, E, occupy the pockets, IW, andlpress against the sides of the transom. As shown in Figs. 1, 2, and 4, I prefer to reinforce the transom in transverse direction bymeans of blocks, a, in horizontal line with the springs, E, E. It will be obvious that a single spring, E may be employed between each member, B, and the transom, but I prefer to use the springs in parts as shown. The. springs, E, E, by tending to separate the upper parts of arms, bl, of the members B, operate to raise the' hinge points thereof, thereby assistingthe springs' in. sup-U porting the load on the transom. When the transom is depressed all of the springs are further compressed and the arrangement is such that the arms, b, of the mem' bers, B, B, will strike against the side blocks on the transom before any of the springs are completely closed, thereby saving the springs from damage. A further function of the side springs, E, E, is to prevent the rocking of the transom and the members, C, when the trucks are stopped or retarded by means of the brakes at which times the car body-tends to continue its forward movement. The side springs at such times ease the shock on the car body and'retard its motion until equilibrium is restored.

The brake mechanism as before stated may be of any lsuitable design or kind and differs from other mccham isms only tothe extent that it is suspended from the vertically movable portions of the truck as shown in Figs. 3, 5 and 6. The brake hanger arms, J, are preferably mounted upon the ends, d, of the hinge pins, D.

As before stated the transom, A, and the -mcmbers, C, being fastened together practically constitute a single part and it will be obvious that in making these ment of the truck. Nevertheless in describing the construction of my truck I have also found it necessary to refer to the members or portions, C, 0,' as constituting the mid parts of said frames.

Various modifications of my invention will readily suggest themselves to' one skilled in the art and. I therefore do not confine theinvention to the specific constructions herein shown and described.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A car truck comprising wheels ,and axles, in combination with a load-sustaining transom, and pivotally-articn -lated spring containing and supported side-frames carry l ing said transom, substantially as described.

25A car truck comprising wheels and axles, in combination with a load-sustaining transom, having a truck center,

and pivotally articulated spring suppor'tedside frames carrying said transom, substantiallyas described.

3. A car truck comprising wheels-and axles, in combina-v tion with side frames connecting` said axles, each said side-frame comprising-a plurality of pivotally connected parts, a transomA connecting and resting upon said sideframes, and springs interposed between the parts of said side-frame to supportthe same in elevated position, sub-` stantially as described. y

4. A car truck comprising wheels and axies,'in combination with side-frames connecting said axles, each said sideframe comprising a plurality of pivotally connected parts, a transom connecting and resting upon said side-frames, and springs interposed between the parts of said sideframe, and between snidparts and said' transom substantially as described.

5; A carl truck comprising wheels and axles, in combination with a bolster having hinge portions at its ends, slide frame members extending from said axles and hinged upon said transom, and springsinterposed between said transom and said side frame members, substantially as described.

6. A car truck comprising wheels and ax1esin combina-4 tion witlra transom having hinge members upon its ends, spring brackets depending from the`ends of said transom, side frame members extending from said axles and at their inner ends hinged upon said transom, said side frame members having arms extending beneath the ends of saidV transom and springs interposed between said arms said brackets, substantially as described.

7. A car truck comprising wheels and axles, .in combina. tion with a transom having hinge members upon its ends,

spring brackets depending from the ends of said transom,

side frame members extending from said axles and at 'their' inner ends hinged upon said transom, said side frame members having arms extending beneath the, ends of said transom, springs interposed between said arms and said bracket and other springs interposed betweenthe upper portions of said members and the sides of said transom, substantially as described. l

8. A car truck comprising wheels and axles, in combina` tion with a transom, slide frame members extending from said axles and at theirinner ends hinged to said transom and springs interposed between said side frame members and said transom and holding said members and said transom in elevated positions, substantially as described.

9. A car truck comprising wheels and axles, in combination with a transom,'side frame members extending from said axles and at their inner ends hinged to the lower part of said transom, said side frame members hving arms adjacent to the sides of said transom and springs interposed between the said arms and said transom, substantially as described. v v

10. A car truck comprising wheels and axles, in combination with a transom, side frame members extending from said axles and at their inner ends hinged upon said transom, said side frilme members having upwardly extending arms, springs tendng'to distend said arms,A other substantially horizontal arms upon said side frame members and springsl interposed between the same and said bolster, substantially as described.

11. A car truck comprising wheels and axles, in combination with a transom, side frame members extending from said axle and hinged 'upon said transom, spring brackets depending from said transom, substantially horizontal arms extending from said side frame members and Springs t' and saldside frame members and means whereby nation with side frame members extending from said axles, mid-members whereon respective pairs of side frame members are hinged, spring brackets depending from said mid-members, springs interposed-between said brackets the load is transmitted to said mid-members, substantially as described.

13.A ear trnck comprising wheels and' ailes, in combi4 nation with pnirs of side 'frame members extending from said axles and provided with horizontal and vertical arms.

frame members, substantially middnembers whereon respective pairs of members-are hlned, springs tending to separate the vertical arms of said members and other springs interposed between said mid-members and the horizontal arms of respective side as described.

.14.V A car truck, comprising wheels and axles, in combination with pivotally articulated side frames. :i transom fresting upon said side frames, springs arranged between the parts and supporting the sume ln elevatedpositlon'and a suspended brake 'mechanism vertically movable with said transom,- substantially as described.

15. A car truck comprising wheels and axles, in combination with a transom, mid-members at the ends thereof, side frame members extending from said axlesl'and having horizontal amd vertical arms, hinge pinswhereby said frame members are attached to the ends of said -midmexn` bers and springs interposed between said frame and. midmembers and between said frame members and said transom. substantially as described.

1G. A cnr trnck comprising wheels and axles, in combination with a transom, pivotally articulated spring contnninav and supported side frames carrying said transom :ind said sido frames having integrali journal boxes. snbslnntnlly ns described.

ln testimony whereof, I lizwe hereunto set my hand, this 22nd day of Mnl-ch, 1907. in the presence ol' two subscribing witnesses.

\VALTER E. AMBERG.

\\'lt nosscs illlAnm-:s Glmn-:R'r IIAWLEY, incultes J. READ. 

